Geophysical Research Abstracts Vol. 21, EGU2019-17659, 2019 EGU General Assembly 2019 © Author(s) 2019. CC Attribution 4.0 license. Multi-scale approach to quantify the influence of urban green spaces on climate behavior of the Viladecans-Gavà-Castelldefels conurbation in the metropolitan area of Barcelona Blanca Arellano, Alan García, and Josep Roca Technical University of Catalonia, Architectural Technology, Spain (
[email protected]) Literature widely recognize the strong influence of urban green spaces in the microclimatic regulation and its potential applications to mitigate warming in cities. Promote viable actions to the climate change adaptation from cities through vegetation and help to palliate the urban heat island effect (UHI) to reduce health risk during extreme heat episodes, requires accurate criteria for each context in its different scales. This study presents a multi-scale approach to quantify the influence of urban green spaces on climate behavior of the Viladecans-Gava-Castelldefels conurbation in the metropolitan area of Barcelona. For this purpose, first, air (Ta) and surface (Ts) temperature of 124 points located in the interior and surroundings of seven green spaces are registered through field measurement campaigns during day and night between July 26 and August 4 of 2018. Then, Land Surface Temperature (LST) and Normalized Difference Vegetation Index (NDVI) from Landsat 8 and Sentinel 2 data imagery for a clear-sky day nearby to the measurement days are retrieved and complemented with the NDVI of the spring-summer period of 2018 (1m) available in the Cartographic and Geographic Institute of Catalonia (ICGC). Analytical methods departed from the UHI characterization of the three-municipal area, resulted in 1.63◦C LST increase in the urban Corine land cover (CLC) in relation with the rural at the whole ambit.